using System;

​

public class Program

{

    public static void Main()

    {

        int fan, aaa;

        string sa;

        fan = 27;

        aaa = 0;

        Console.WriteLine("3,9,27,...");

        Console.WriteLine("Hitung Lagi [Y/T}? ");

        while (aaa < 10)

        {

            sa = Console.ReadLine();

            while (aaa < 100)

            {

                if (sa == "Y")

                {

                    Console.Write((fan *= 3) + "," + (fan *= 3) + "," + (fan *= 3) + "," + (fan *= 3) + ",");

                    if (fan > aaa)

                    {

                        Console.WriteLine("...");

                        break;

                    }

                }

                else if (sa == "T")

                {

                    Console.WriteLine("Terima kasih");

                    Environment.Exit(0);

                }

                else

                {

                    Console.WriteLine("Mohon masukkan input yang tepat [Y/T]");

                    break;

                }

            }

​

            aaa++;

        }

    }

}